Analysis

  • max time kernel
    133s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 15:52

General

  • Target

    59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe

  • Size

    372KB

  • MD5

    918c9a0562f31fbaf2147d55138bb32d

  • SHA1

    d6f34de772643203d3f964c83d8b3b2af4865de6

  • SHA256

    59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe

  • SHA512

    38c05cfd43c8fa6f67760572ff95acace95ab63fa5adaedc242db3b1ad9e9981228fad65c356237cacd0b785630a1fbf12b701d6d8221858ee38716623ca8e58

  • SSDEEP

    6144:2340bT53/l0SfFOzHlVTAThxgDxHZLdqUItnYNiL+oprkTmRAehzTtvY:2340N9FfFoHv2gDxyTAW+odkTmZtBY

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe
    "C:\Users\Admin\AppData\Local\Temp\59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:920
    • C:\Users\Admin\AppData\Local\Temp\upk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\upk.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4580
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 2324
        3⤵
        • Program crash
        PID:1060
    • C:\Users\Admin\AppData\Local\Temp\upk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\upk.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4384
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 920 -s 1516
      2⤵
      • Program crash
      PID:2676
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 920 -ip 920
    1⤵
      PID:2008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4580 -ip 4580
      1⤵
        PID:2124

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Are.docx

        Filesize

        11KB

        MD5

        a33e5b189842c5867f46566bdbf7a095

        SHA1

        e1c06359f6a76da90d19e8fd95e79c832edb3196

        SHA256

        5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

        SHA512

        f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Temp\upk.0.exe

        Filesize

        231KB

        MD5

        b7d22e8408d8864725d0d5822d8d9543

        SHA1

        d6ee4aa321ce7bcc9dca07bb77371ba8d6d34515

        SHA256

        f5a8a7d27168d2c02ffd67151bd3a561d3ee6c61ff01b136a6de65fd3bc12028

        SHA512

        6f3764680c54481c398bf75726da47342d6131d13c960f6b2b94065d9fd2b6b834679a76d7b6b5a0cb5d9506293ce680e73862d24814228c1090c73f62a8e47d

      • C:\Users\Admin\AppData\Local\Temp\upk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/376-123-0x000001F1E8A60000-0x000001F1E8A82000-memory.dmp

        Filesize

        136KB

      • memory/376-111-0x000001F1E2FF0000-0x000001F1E2FFA000-memory.dmp

        Filesize

        40KB

      • memory/376-138-0x000001F1E3A30000-0x000001F1E3A4E000-memory.dmp

        Filesize

        120KB

      • memory/376-131-0x000001F1E8840000-0x000001F1E88B6000-memory.dmp

        Filesize

        472KB

      • memory/376-130-0x000001F1E8760000-0x000001F1E876C000-memory.dmp

        Filesize

        48KB

      • memory/376-127-0x000001F1E8FB0000-0x000001F1E94D8000-memory.dmp

        Filesize

        5.2MB

      • memory/376-121-0x000001F1E89E0000-0x000001F1E89EA000-memory.dmp

        Filesize

        40KB

      • memory/376-122-0x000001F1E8A00000-0x000001F1E8A62000-memory.dmp

        Filesize

        392KB

      • memory/376-97-0x000001F1C4240000-0x000001F1C7A74000-memory.dmp

        Filesize

        56.2MB

      • memory/376-100-0x000001F1E2F10000-0x000001F1E2F1C000-memory.dmp

        Filesize

        48KB

      • memory/376-99-0x000001F1E2EF0000-0x000001F1E2F00000-memory.dmp

        Filesize

        64KB

      • memory/376-98-0x000001F1E3110000-0x000001F1E321A000-memory.dmp

        Filesize

        1.0MB

      • memory/376-105-0x000001F1E2F70000-0x000001F1E2F94000-memory.dmp

        Filesize

        144KB

      • memory/376-101-0x000001F1E2F00000-0x000001F1E2F14000-memory.dmp

        Filesize

        80KB

      • memory/376-108-0x000001F1E3390000-0x000001F1E3442000-memory.dmp

        Filesize

        712KB

      • memory/376-107-0x000001F1E3360000-0x000001F1E338A000-memory.dmp

        Filesize

        168KB

      • memory/376-106-0x000001F1E2FA0000-0x000001F1E2FAA000-memory.dmp

        Filesize

        40KB

      • memory/376-109-0x000001F1E3490000-0x000001F1E34E0000-memory.dmp

        Filesize

        320KB

      • memory/376-110-0x000001F1E34E0000-0x000001F1E3502000-memory.dmp

        Filesize

        136KB

      • memory/376-119-0x000001F1E7840000-0x000001F1E784E000-memory.dmp

        Filesize

        56KB

      • memory/376-115-0x000001F1E3510000-0x000001F1E3810000-memory.dmp

        Filesize

        3.0MB

      • memory/376-117-0x000001F1E7F30000-0x000001F1E7F38000-memory.dmp

        Filesize

        32KB

      • memory/376-118-0x000001F1E7870000-0x000001F1E78A8000-memory.dmp

        Filesize

        224KB

      • memory/376-120-0x000001F1E7860000-0x000001F1E7868000-memory.dmp

        Filesize

        32KB

      • memory/920-4-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/920-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/920-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/920-2-0x0000000004210000-0x000000000427C000-memory.dmp

        Filesize

        432KB

      • memory/920-1-0x00000000026A0000-0x00000000027A0000-memory.dmp

        Filesize

        1024KB

      • memory/920-28-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4384-96-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4384-51-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4580-63-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4580-49-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4580-160-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4580-165-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4580-50-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4580-172-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB